Polymerizable liquid crystal composition and optically anisotropic body

Patent metadata

Field	Value
Publication number	US-9540567-B2
Application number	US-201615084493-A
Country	US
Kind code	B2
Filing date	Mar 30, 2016
Priority date	Mar 31, 2015
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A polymerizable liquid crystal composition contains a polymerizable liquid crystal compound having good solubility, and is well-aligned without dissolving a substrate or a base material when coated onto the substrate. Moreover, the polymerizable liquid crystal composition causes no coating film unevenness during coating so that a smooth optically anisotropic body can be obtained. The polymerizable liquid crystal composition contains at least one kind of polymerizable liquid crystal compound having one or more polymerizable functional groups in one molecule, and a solvent, wherein the solvent includes a diacetate solvent and a ketone solvent.

First claim

What is claimed is:

1. A polymerizable liquid crystal composition, containing at least one kind of polymerizable liquid crystal compound having one or more polymerizable functional groups in one molecule, and a solvent, wherein the solvent comprises a diacetate solvent and a ketone solvent.

2. The polymerizable liquid crystal composition of claim 1 , wherein the diacetate solvent is contained in an amount of 1 wt % to 75 wt % relative to a total amount of the solvent.

3. The polymerizable liquid crystal composition of claim 1 , wherein the diacetate solvent comprises at least one selected from the group consisting of propylene glycol diacetate, 1,4-butanediol diacetate and 1,3-butylene glycol diacetate.

4. The polymerizable liquid crystal composition of claim 3 , wherein the diacetate solvent comprises at least one selected from the group consisting of propylene glycol diacetate and 1,4-butanediol diacetate.

5. The polymerizable liquid crystal composition of claim 1 , wherein the ketone solvent is contained in an amount of 50 wt % to 95 wt % relative to a total amount of the solvent.

6. The polymerizable liquid crystal composition of claim 1 , wherein the ketone solvent comprises cyclopentanone.

7. The polymerizable liquid crystal composition of claim 1 , further containing a monoacetate solvent in an amount of 30 wt % or less relative to a total amount of the solvent.

8. The polymerizable liquid crystal composition of claim 7 , wherein the monoacetate solvent comprises propylene glycol methyl ether acetate.

9. The polymerizable liquid crystal composition of claim 1 , further containing an ether solvent in an amount of 10 wt % or less relative to a total amount of the solvent.

10. The polymerizable liquid crystal composition of claim 9 , wherein the ether solvent comprises diethylene glycol methyl ethyl ether.

11. The polymerizable liquid crystal composition of claim 1 , further containing a solvent other than the diacetate solvent, the ketone solvent, a monoacetate solvent and an ether solvent, in an amount of 5 wt % or less relative to a total amount of the solvent in the polymerizable liquid crystal composition.

12. The polymerizable liquid crystal composition of claim 11 , wherein a total content of an alcohol solvent and a hydrocarbon solvent is 5 wt % or less relative to the total amount of the solvent in the polymerizable liquid crystal composition.

13. An optically anisotropic body obtained by curing the polymerizable liquid crystal composition of claim 1 in an aligned state.

14. An optically anisotropic body obtained by curing the polymerizable liquid crystal composition of claim 1 in a horizontally aligned state.

15. An optically anisotropic body obtained by curing the polymerizable liquid crystal composition of claim 1 in a twistedly aligned state.

16. An optically anisotropic body obtained by curing the polymerizable liquid crystal composition of claim 1 in a vertically aligned state.

17. A laminated optically anisotropic body obtained by laminating a plurality of the optically anisotropic body of claim 13 .

18. A laminated optically anisotropic body obtained by laminating a plurality of the optically anisotropic body of claim 14 .

19. A laminated optically anisotropic body obtained by laminating a plurality of the optically anisotropic body of claim 15 .

20. A laminated optically anisotropic body obtained by laminating a plurality of the optically anisotropic body of claim 16 .

Assignees

• Jnc Corp
• Jnc Petrochemical Corp

Inventors

• Miyagawa Nagahisa

Classifications

• C09K2019/0448

  the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate · CPC title

• C09K19/52 Primary

  characterised by components which are not liquid crystals, e.g. additives {with special physical aspect: solvents, solid particles} · CPC title

• C09K2019/525

  Solvents · CPC title

• B32B2551/00

  Optical elements · CPC title

• G02F1/137

  characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering · CPC title